"She Loves You" famously incorporates an added sixth chord at the end of the introductory and concluding choruses (0:10 and 2:15). But the song also contains another, far less well-known added sixth: The penultimate "Yeah Yeah Yeah" (2:10) is an e minor chord with a C# thrown in making it an e minor with an added sixth. That added tone it not heard in any of the previous 14 e minor chords used in the song.

Why would the band save that extra note for the end? Why not use it earlier, too?Because it creates descending chromatic voice leading (shown in red in the example below) that strengths its harmonic conclusivity.

The same progression without that added sixth wouldn't have the same chromatic voice leading and so wouldn't sound as harmonically conclusive.

My thanks to Jacob Michael for pointing out this most unusual chord.

I continue south to Hattiesburg tomorrow:

Wednesday, 25 January 2017, 6:30-8:00 p.m.T-Bones Records & Cafe, 2101 Hardy St, Hattiesburg, MSReinventing Rock 'n' Roll: The Beatles' Rubber Soul and RevolverThe sophisticated songwriting and innovative recording techniques on the Beatles' sixth studio album Rubber Soul (1965) and seventh studio album Revolver(1966) exemplify the originality and experimentation for which the band is so famous. This 90-minute multimedia presentation discusses and analyzes highlights from both albums.